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  <div id="layout-content"><div id="function.session-decode" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">session_decode</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">session_decode</span> &mdash; <span class="dc-title">解码会话数据</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.session-decode-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>session_decode</strong></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$data</code></span>): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>session_decode()</strong></span> 对 <code class="parameter">$data</code>
   参数中的已经序列化的会话数据进行解码，
   并且使用解码后的数据填充 $_SESSION 超级全局变量。
  </p>
  <p class="para">
   请注意，这里的反序列化方法不同于 <span class="function"><a href="function.unserialize.html" class="function">unserialize()</a></span> 函数。
   序列化方法是 PHP 内置的，并且可以通过
   <a href="session.configuration.html#ini.session.serialize-handler" class="link">session.serialize_handler</a> 配置项进行修改。
  </p>
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 <div class="refsect1 parameters" id="refsect1-function.session-decode-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">data</code></dt>

     <dd>

      <p class="para">
       编码后的数据
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.session-decode-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>true</code></strong>， 或者在失败时返回 <strong><code>false</code></strong>。
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.session-decode-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.session-encode.html" class="function" rel="rdfs-seeAlso">session_encode()</a> - 将当前会话数据编码为一个字符串</span></li>
    <li class="member"><a href="session.configuration.html#ini.session.serialize-handler" class="link">session.serialize_handler</a></li>
   </ul>
  </p>
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